Hi!
It's been a long time since I finished the league, but I don't know how to get to route 224, can someone help me?

I have no idea what you are talking about, but Google is your friend. See if WikiAnswers - How do you get to route 224 in Pokemon Pearl (http://wiki.answers.com/Q/How_do_you_get_to_route_224_in_Pokemon_Pearl) applies.